Corsair Vengeance 12GB DDR3 Memory Kit review

Memory (DDR4/DDR5) and Storage (SSD/NVMe) 366 Page 10 of 13 Published by

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Performance Video Transcoding - Queen Test

 

Transcoding video content

We recently added another benchmark to the test-suite. It's MediaShow Espresso. The fun thing about this video transcoder is that it can utilize the GPU to assist it with the transcending process.  However, you can also solely use the CPU, making this a very interesting benchmark and you can check out behavior of CPU transcoding AND GPU transcoding all in one test.

Below you can find the first results of this new test. In this test we transcode a 200 MB AVCHD 1920x1080i media file to a 1280x720P MP4 binary.

Okay here where we are going to TRY and show you the difference in-between 3GB, 6GB and 12GB configurations, which is a harder thing to accomplish than you may think.

We'll agree immediately that 6GB is the current sweet spot, but granted 12GB helps out in transcoding video as we shave off another 3 seconds which is great.

 

Multi-threaded Video Transcoding H.264

x.264 is a free library for encoding H.264/MPEG-4 AVC video streams. Encoding/transcoding to that format is one of the most intensive tasks a processor can perform. As such this is probably the best test in the entire review. We encode a h.264 Dolby Digital 1080P trailer of 150 MB to Matroska x.264 with 5.1 channels AC3. It's compressed in such a way you can play it back with Haali media splitter and/or FFDSHOW codecs. We use Handbrake software which is multi-core aware... the more processor cores it sees, the faster it can and will transcode.

This software is a perfect benchmark for CPU and memory testing as it is very sensitive to multiple cores and memory frequency. The displayed number is the number of frames rendered per second averaged out over the encoding process. The higher the number, the faster the performance is.

We observe much less performance gain while encoding video with handbrake software even if we go all the way back to 3GB and compare to 1600 MHz /12 GB the gain here was only (roughly) 1 FPS.

 

Queen CPU Test

This simple integer benchmark focuses on the branch prediction capabilities and the misprediction penalties of the CPU. It finds the solutions for the classic "Queens problem" on a 10 by 10 sized chessboard. At the same clock speed, theoretically the processor with the shorter pipeline and smaller misprediction penalties will attain higher benchmark scores. For example -- with HyperThreading disabled -- the Intel Northwood core processors get higher scores than the Intel Prescott core based ones due to the 20-step vs 31-step long pipeline. However, with HyperThreading enabled the picture is controversial, because due to architectural bottlenecks the Northwood core runs out of internal resources and slows down. Similarly, at the same clock speed AMD K8 class processors will be faster than AMD K7 ones due to the improved branch prediction capabilities of the K8 architecture.

For reference sake we always throw in some CPU tests. Your processor is tied closely to your System memory. Though it will be really hard to show differences in performance here, you often can observe them.

Queen test uses only the basic x86 instructions, it consumes less than 1 MB system memory and it is HyperThreading, multi-processor (SMP) and multi-core aware and is thus a multithreading CPU Benchmark with MMX, SSE2 and SSE3 optimizations.

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